crazy math

Scientific Notation

100

1.95 x 10⁷

19,500,000

200

6.92 x 10^-6

0.00000692

300

8.39 x 10³

8,390

400

3.855 x 10^-7

0.0000003855

500

4.689 x 10^-4

0.0004689

Simplifying Expression

100

c + 4 +6c + 1

7c + 5

200

5 + c + 1 - 1

c + 5

300

-5 + 6u² + 3 + u

6u² + u - 2

400

2u + 3u - 6u - 5u² 

-5u² - u

500

-4b - b + 3b^{2 +} b

3b² - 4b

Equation with parentheses

100

(7+(16-2))x5

105

200

(9+1)x(7-5)

20

300

(20-(3+8))x2

18

400

(36-(1+5))x2

60

500

(97-(8+5))x2

168

Equation with substitution

100

2x + 7y =3

x=-4y

x=?

y=?

x=12

y=-3

200

5x - 7y = 58

y= -x + 2

x= ?

y= ?

x= 6

y= -4

300

7x + 10y =36

y=2x + 9

x= ?

y= ?

x= -2

y= 5 

400

-7x - 6y = 4

x = -3y + 8

x= ?

y= ?

x= -4

y= 4

500

7x-3y= 20

y=5x-4

x= ?

y= ?

x=4

y=5

Solving linear equations

100

2 + x = 7 

5

200

5 + x = 9

4

300

8 + x = 11

3

400

14 + x =

23

500

19 + x = 32

13